Ethernet- The Next Generation

John D’Ambrosia -Chair, IEEE 802.3 HSSG Scientist, Components Technology

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Per IEEE-SA Standards Board Operations Manual, January 2005

At lectures, symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than the formal position, explanation, or interpretation of the IEEE.

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The Ethernet Ecosystem

Research, Education and Government

Facilities

ResearchNetworks

Broadband Access

BroadbandAccess Networks

Data Centers and Enterprise

EnterpriseNetworks

Content Providers

ContentNetworks

Internet BackboneNetworks

Internet BackboneNetworks

IEEE 802.3 HSSG “Call-For-Interest”, 7/2006

Internet eXchange andInterconnection Points

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Reasons Cited for 100 Gb Ethernet

LAG is becoming too unwieldy

Use of lots of cheap GE Servers

Migrating GE servers to 10GE servers

10G port density demand

Blade Servers

Plans to use virtualization

My core needs to support more 10GE access

My carrier isn’t taking on new 10GE services

Video – On Demand / High Definition

Multicast Traffic – Financial Applications

Broadband Access and Content Consumption

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Timing of Application Needs

100

1,000

10,000

100,000

1,000,000

1995 2000 2005 2010 2015 2020

Date

Rate Mb/s

CoreNetworkingDoubling≈18 mos

ServerI/O

Doubling≈24 mos

Gigabit Ethernet

10 Gigabit Ethernet

100 Gigabit Ethernet

40 Gigabit Ethernet

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HSSG Objectives

Support full-duplex operation only Preserve the 802.3 / Ethernet frame format utilizing the 802.3 MAC Preserve minimum and maximum FrameSize of current 802.3 standard Support a BER better than or equal to 10-12 at the MAC/PLS service interface Provide appropriate support for OTN Support a MAC data rate of 40 Gb/s Provide Physical Layer specifications which support 40 Gb/s operation over:

– at least 100m on OM3 MMF– at least 10m over a copper cable assembly– at least 1m over a backplane

Support a MAC data rate of 100 Gb/s Provide Physical Layer specifications which support 100 Gb/s operation over:

– at least 40km on SMF– at least 10km on SMF– at least 100m on OM3 MMF– at least 10m over a copper cable assembly

Adopted by HSSG and approved by 802.3 at July 2007 Plenary

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Providing Support for OTN

ResearchNetworks

BroadbandAccess

Networks

EnterpriseNetworks

ContentNetworks

Internet BackboneNetworks

Internet BackboneNetworks

ResearchNetworksResearchNetworks

BroadbandAccess

Networks

EnterpriseNetworksEnterpriseNetworks

ContentNetworksContent

Networks

Internet BackboneNetworks

Internet BackboneNetworks

10 Gbps DWDM

40 Gbps DWDM

OTN Networks– 10 Gbps DWDM – 40 Gbps DWDM– No existing 100G transport network

Problems for Next Gen Ethernet– 40GE: line rate > Payload of ODU3

products – 100GE: Existing / Greenfield networks

Solution Discussion – Transcoding (could be defined by ITU)

– requires IEEE 802.3 to forbid use of undefined 64B/66B code words

– ITU-T SG15 - define ODU4 to provide transparent backhauling of 100 GbE on single

– 100 GbE may also be carried over current OTN networks using virtual concatenation:

– ODU3-3v, 3 bonded wavelengths of 40Gbit/s

– ODU2-11v, 11 bonded wavelengths of 10Gbit/s

Ethernet Ecosystem

Future – 100 Gbps DWDM

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Physical Layer Specifications

40G 100G

At least 1m backplane √

At least 10m cu cable √ √

At least 100m OM3 MMF √ √

At least 10km SMF √

At least 40km SMF √

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Higher Speeds Drive Density – Everyone Benefits!

You may not need 100G Ethernet, but the Eco-System does….

Even if you don’t need higher speed Ethernet, you still benefit

New technology will drive 10 GbE port density up and cost down– Just as 10 GbE did for GbE

Assuming switch/routers have the switching capacity, these line-rate combinations on a single line card are possible for 100 GbE– 1 x 100 GbE port– 10 x 10 GbE ports– 100 x 1 GbE ports– And even more oversubscribed port density…

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Industry System Port Count Cycle

2002 2004 2006 2010*2008

100 GE Standard In Development

GE 100’s Ports > 1000 Ports

10 GE 10’s Ports > 100’s Ports100’s Ports

10’s Ports

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The Next Generation of Ethernet

The Higher Speed Study Group will become the IEEE 802.3ba Task Force

This effort will produce 1 amendment to the IEEE 802.3 specification.

40 GbE and 100 GbE will be delivered together